High voltage motor control circuit

Details High voltage motor control circuit High voltage motor control circuit

1982-07-26

1984-07-31

Rubinson, G. Z.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318786, H02P 144

Patent

active

044633041

ABSTRACT:
This disclosure relates to a circuit for controlling energization of a start winding of a single-phase motor connectable by power lines to an AC power supply. The circuit includes at least two triacs connected in back-to-back series relation and connected in series with the start winding. The circuit further comprises a reed switch including reed contacts and a reed coil. The gates of the two triacs are connected across the reed contacts, and the reed coil is connected in one of the power lines and receives the line current during energization of the motor.

REFERENCES:
patent: 3573579 (1971-04-01), Lewus
patent: 3766457 (1973-10-01), Fink
patent: 3916274 (1975-10-01), Lewus
patent: 3970908 (1976-07-01), Hansen
patent: 4307327 (1981-12-01), Streater

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